中文摘要：

LI Qing male, he was born in Baoding, Hebei, China in 1968. He received his Ph.D. degree in Optical Engineer from Hebei University, China, where he is working now. His research interests are high voltage engineering end air pollution control. WANG Qiaoyan female, she was bom in Tangshan, Hcbei, China in 1986. She received M.S. degree in environmental engineering ~om Hebei University, China. Her research interests are high voltage engineering and air pollution control. LIU Pu male, he was bom in Shijiazhuang, Hebei, China in 1989. He is working toward his M.S. degree in environmental engineering from Hebei University, China. His research interests are high voltage engineering and air pollution control.